Improvement in machines for riving shingles



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Machines for-Biving Shingles. N0. 44,292. Patented Nov.4,l873| yAttorneys.

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Machines for Biving Shingles." No. 144,292. Parentednov.4,xs73.

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UNITED STATES PATENT OFFICE..

CHARLES SHELMANDINE, OF JEFFERSON, NEW' YORK.

IMPROVEMENT IN MACHINES FOR RIVING SHINGLES.

Specification forming part of Letters Patent No. 144,292, dated Novrmber4, 1873; application filed September 13, 1873.

To all 'whom it may concern:

Be it known that I, GHARLEs SHELMAN- DINE, of Jefferson, in the coiuityof Schoharie and State of New York, have invented a new Improvement inMachine for Riving Shingles, of which the following is a specification:

The object of my invention is to provide a machine by which shingle,stave, and heading bolts can be rapidly and economically rived intoblanks 5 and it consists of two or more sets of movable knives orblades, a set of stationary ones, and a movable table, and operatingdevices for the table and the movable knives, all combined and arrangedso that a bolt put oli-,the table under the knives will be forcedagainst the stationary knives and split on the sides to remove thespalt; then a set of movable knives will move down. and split the blockinto two or more pieces; and then the next set will operate in the sameway, and complete the operation by successive actions, which arenecessary in order that the knives will not bind in the block, as theywould if the whole gang were forced through it simultaneously.

Figure 1. is a plan view of my improved rivin gmachine, partly insection, taken on the line z z of Fig. 3. Fig. 2 is a longitudinalsectional elevation taken on the line m of Fig. 1. Fig. 3 is a crosssection taken on the line y y of Fig. 1. Fig. 4 is a portion of themachine in side elevation, and Fig. 5 is a detail view of some of theparts.

Similar letters of reference indicate corre sponding parts.

A is the splitting or riving table, on which the bolts are set on endunder the two stationary splitting-blades B, also under the movableblades O and D, all of which are arranged side by side, with their edgespointing downward toward the table, and all constituting a gang of whichthe blades are as far apart as the required thickness of the blanks tobe made. The blades B are at the extremities of the gang, and areattached to bars E attached to and supported on the stationarycross-beams of the frame of the machine. These two blades constitutewhat I call the first set. The second set is represented in this exampleby the single middle blade D, which is supported on the vertical bars G,which are attached to and supported on the vertically movablecrossproper time.

heads H, arranged in the vertical ways I in the housings, and attachedto the bar J, on which are vertical toothed bars K, gearing with thepinions L on .the shafts M and N, the said pinions gearing together, andbeing fitted on loose to allow the shafts to turn without actuating theblade while it is required to rest. A clutch, O, connects with thepinion on shaft N. -When the blade is to be worked, said clutch isactuated by the arm P on the sliding rod Q, which is actuated by thelever R. C represents the third set of blades. They are between themiddle blade D and the two outside blades B, and they are mounted on thebars S, which are attached to the movable cross-heads T arranged in thevertical ways U, and attached to the bar V, having the toothed bars Wrising up from it, and gearing with the pinions X on the shafts M and N,and also gearing together, said pinions being iixed loose so as not toturn except when the blades O are to be worked, and the one on shaft Mbeing provided with a sliding clutch, Y, to set it in motion at the Theclutch is actuated by an arm, Z, on the sliding shaft Z1, which isactuated by the lever Z2. The table is mounted on the top of thedouble-toothed bar A', which gears with the pinions B' on the shafts Mand N, said pinions being fast on said shafts and turning continuallywith them. They force the table up till the lower end of bar A' escapesfrom them. A sliding catch-bolt, C', is then forced into a hole in thebar by a spring, D', and holds it up so that said pinions can continueto turn while the shafts are continued in motion for actuatingsplitting-blades. These shafts are geared together by the pinions E' onone side of the machine, and on the other side has a loose driving-wheel, F', to which the power is applied, and with which there is aclutch, G', which is thrown in connection with the wheel by a spring,H', acting on the arm I', which is on the sliding rod J', extendingthrough it to the other side of the machine, and having ashifting-lever, K', connected with it.n A latch, L', drops into a notchin rodJ' by the side of the frame, to hold clutch I' out of gear withthe wheel, and has a rod, M', connected with it, having a foot-piece,N', near the bottom of the frame, so that the attendant can trip thesliding rod J and allow spring H' to throw in .the clutch when he wishesto start the machine by putting his foot on said foot-piece. Al springforces the rod up and causes the trip-catch to fall into the notch inrod J' whenever the clutch is pulled out of connection with thedriving-wheel. The table is provided with springs P' to pull it downafter each block is split; and it has a yoke, Q', extending up over theblades, and carrying a plate, R', for striking against the split blanksremaining between the blades when the table goes down and driving themout. The bars E, G, and S, by which the blades are connected to theirrespective cross-heads, are pivoted to said cross-heads, as at S', Fig.5, so that they can vibrate a little to allow the blades such lateralmotion as may be necessary to accommodate the sinuosities of the grainof the wood, and they are conned by springs T', which hold them firmlyin position when not forced out by the crooked timber, but they yieldand allow the blades to follow the grain when the force is so great asto endanger the machine. They return the blades to their positions assoon as the lateral strain ceases. The table falls as much below theedges of the stationary blades as the length of' a block, V', to besplit. Said block is then put on the table under the blades, so that oneoutside blade will take off Lhe spalt or waste. The trip-catch L is thenraised by the foot, and the machine set in motion by the clutch G',which forces the block up against the stationary blades, and forces theother blades up by the block. When the table has arrived at the end ofits movement and becomes fastened by the catch-bolt C', the lever R ispulled out and the pinions L' clutched in'so as to force the movableblade D down through the middle of the block, which remains confined bythe blades C. Just before this' blade Acomes to the bottom a cam, e', onone of the toothed bars K comes against arm l) and throws out the clutchto stop the blade.

The lever Z2 isthen pushed inY and the pinions X clutched in, so as toset the blades G in m0- tion. They are forced down in like manner,splitting the two remaining portions of the block and completing thework. A cam, W', acting on arm Z, throws them out also. Then clutch G'is thrown out, and the shafts M N are adjusted by a mark on the side ofthe frame by setting a tooth of one of the pinions E' to said mark, sothat, the table being let fall, its toothed bar A' will mesh with thepinions B'. The catch-rod C' is then pushed out by lever X', with whichit is connected, and the table is pulled down by the springs P' 5 at thesame time the plate R' forces the blanks out from between the blades.More blades may be used, if preferred, with the same contrivances foroperating them repeated. For splitting wood the blades C and D will beremoved and onlyr the stationary blades used.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of the movable table A, stationaryblades B, oneor more sets of movable blades, C D, and mechanism foroperating the table and the sets of movable blades succes.

sively, substantially as specied.

2. The double-toothed rack A', pinions B', cateh-bolt C', and spring D',combined and arranged substantially as specified.

3. One or more blades, C D, bars S, crossheads T, bars V, toothed barsW, and pinions X, combined and arranged substantially as specified.

4. The combination of' the yoke Q' and discharger K' with the table Aand splittin g-blades, substantially as specified.

CHARLES SHELMANDINE.

`Vitnesses:

NATHAN MANN, JosErI-r R. STANLEY.

